4U1K
HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1 escape through identical epitopes
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4I4W |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6 | 291 | 0.1 M Sodium Cacodylate, pH 6, 15% PEG 8000, 15% Glycerol |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.68 | 54.18 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 46.27 | α = 91.37 |
b = 49.13 | β = 93.57 |
c = 107.46 | γ = 95.75 |
Symmetry | |
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Space Group | P 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | PIXEL | PSI PILATUS 6M | mirrors | 2012-06-30 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I03 | 0.9763 | Diamond | I03 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||
1 | 2.09 | 48.86 | 97.5 | 0.098 | 0.087 | 0.983 | 4.8 | 2 | 54249 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 2.09 | 2.14 | 95.7 | 0.358 | 0.317 | 0.822 | 2 | 2 | 3935 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 4I4W | 2.09 | 48.86 | 54207 | 2757 | 97.48 | 0.1783 | 0.1756 | 0.2263 | RANDOM | 51.539 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
0.13 | 0.2 | -0.05 | -0.95 | 0.52 | 0.76 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 33.367 |
r_dihedral_angle_4_deg | 17.379 |
r_dihedral_angle_3_deg | 16.547 |
r_dihedral_angle_1_deg | 7.254 |
r_mcangle_it | 2.041 |
r_angle_refined_deg | 1.857 |
r_mcbond_it | 1.238 |
r_mcbond_other | 1.238 |
r_angle_other_deg | 0.92 |
r_chiral_restr | 0.11 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6366 |
Nucleic Acid Atoms | |
Solvent Atoms | 497 |
Heterogen Atoms | 77 |
Software
Software | |
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Software Name | Purpose |
XDS | data reduction |
Aimless | data scaling |
PDB_EXTRACT | data extraction |
PHASER | phasing |
REFMAC | refinement |
GDA | data reduction |